fixed minor issue in FCC example Tests.

The create_FCC_configuration.f.frag file was inconsistent
with the c version as to the atom that was identified as
the middle atom.  This has been fixed.  This issue was
pointed out by Tomoshisa Kumagai.
install KIM_AUX.h and Unit_Handling.h
fixed bug in vc_forces_delta.f.frag

Jacob Schiotz brought this to my attention.
minor fix to standard.kim
added j>=i for half neighbor list documentation
fixed obsolete F77 do statement in ex_model_Ne_P_LJ_NEIGH_PURE_H_compute.F
fixed bug that broke the dynamic-link compile option

Bug was created when KIM_LISTS were introduced at
commit 8acfe94fee00dc878e3c373d0966001028454077
split kim and parameter files into smaller chunks

To avoid the standard C++ limit on string literals split
text files (kim and parameter files) into chunks smaller
than 2^16 characters.  Then, when needed, piece them back
together.
change KIM_KEY_STRING_LENGTH to 257
fixed bug in api assoc. w/unknown model so load